Answer: A. Directional selection
Explanation: Good luck! :D
Where m and n are statements mVn is called the _____ of m and n .
What diagram represents a pair of homologous chromosomes?
Answer:
I think your answer would be B.
Explanation:
sorry if it is incorrect :/
Which method is the typical first step when scientists communicate their scientific results?
Question 26 of 35
Corundum is the second-hardest mineral on Mohs' hardness scale. How does
this property make corundum useful to humans?
A. It means corundum can be used to make fireworks yellow.
B. It means corundum can be used to flavor foods.
C. It means corundum can be used as pencil lead.
D. It means corundum can be used to grind down and shape
fingernails.
Answer: it means corundum can be used to grind down and shape fingernails
Explanation:
Answer:
D
Explanation:
Sometimes new ideas in science come from traditional methods people used in the past. What did researchers learn from terra preta? How is bio-char different from the traditional Amazonian method of creating terra preta?
Answer:
What did researchers learn from terra preta?... Because terra preta is loaded with so-called bio-char -- similar to charcoal -- it also can pull substantial amounts of carbon out of the increasing levels of carbon dioxide in the Earth's atmosphere, helping to prevent global warming.
How is bio-char different from the traditional Amazonian method of creating terra preta? Terra preta owes its characteristic black color to its weathered charcoal content, and was made by adding a mixture of charcoal, bone, broken pottery, compost and manure to the low fertility Amazonian soil. ... Terra preta soils were created by farming communities between 450 BCE and 950 CE..
The BBC's Unnatural Histories presented evidence that the Amazon rainforest, rather than being a pristine wilderness, has been shaped by man for at least 11,000 years through practices such as forest gardening and terra preta.
Terra preta is a type of dark, fertile soil found in the Amazon rainforest that is believed to have been created by indigenous people thousands of years ago. Researchers have learned from terra preta that it contains a high level of carbon, along with nutrients such as nitrogen, phosphorus, and potassium.
What is terra preta soil?Terra preta, or "black earth," is a type of dark, fertile soil found in the Amazon rainforest that is believed to have been created by indigenous people thousands of years ago. Scientists have studied terra preta to understand its unique properties and how it was created. Terra preta is a type of anthropogenic soil, which means that it was created by human activity rather than natural processes. It is believed that the indigenous people of the Amazon region created terra preta by adding biochar to soil along with other organic materials such as bones, shells, and manure.
Hence, researchers have learned from terra preta that it contains a high level of carbon along with nutrients such as nitrogen, phosphorus, and potassium.
Learn more about the terra preta soil here.
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HELP ME PLEASE ill give brainliest
Answer:
Punnett square
B W
B BB BW
W BW WW
Explanation:
So genotype would be BB 25% as is WW and BW is 50%
phenotype would be black 25% as is white and black and white spots or patches or some such for 50%
What is the relationship between the two parts of the nervous system?
The central nervous system controls thoughts and feelings, while the peripheral nervous system controls movement.
The peripheral nervous system transfers impulses to and from the central nervous system, where the information is processed.
The peripheral nervous system carries information into the body, while the central nervous system carries signals to the muscles and glands.
The central nervous system processes information and stores memory, while the peripheral nervous system controls hormones and feelings.
Answer:
Explanation:
The relationship between the two parts of the nervous system are: The peripheral nervous system transfers impulses to and from the central nervous system, where the information is processed.
Answer:
The peripheral nervous system transfers impulses to and from the central nervous system, where the information is processed.
Explanation:
I had taken this test and got it wrong when i looked at it and its this one.
>> what specific function does the term, respiration, refer to in animals?
Answer:
respiration is a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
20 POINTS!!
Which amino acid corresponds to the mRNA base sequence cytosine-
cytosine-uracil?
A. Phe
B. Ser
C. Pro
D. Leu
Answer it right plz
Explain in your own words why a dominant trait is not always a common trait.
Answer:
Describing a trait as dominant does not mean it is the most common; it means that it is expressed over the recessive trait. For example, tongue rolling is a dominant trait, controlled by the dominant version of a particular gene (R). Individuals with one or two copies of R will exhibit tongue rolling.
Which of the following is produced by the immune system to identify foreign cells?
antibodies
antigens
bacteria
colored dye
Answer:
im pretty sure its antibodies
Explanation:
Answer:
1sy option
Explanation:
edge 2021 :p
PLEASE HELP THIS IS DUE TODAY!!!!!!!!!!!!!!!!!!
You worked on Earthquake Engineering Design Challenge during the last three parts. Please upload your S.T.E.M. Lab Earthquake Engineering Design Challenge worksheet. Make sure that you have answered all parts for Steps 1–13 and your work is shown on the worksheet and double check your work. When you are sure that you have answered all of the Steps accurately, please upload your worksheet.
30 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!
I WILL MARK BRAINLEST!!!!!!!!!!!!!!!!!
Answer:
its easy just read it
Explanation:
and can someone give me branliest so I can rank up please
I need 5 in total
Put the steps of seafloor spreading in order from first to last.
Rock moves outward
A crack forms
Magma hardens
Magma pushes upward
Answer: a crack forms, magma pushes upward, magma hardens, rock moves outward.
Answer:
image
Explanation:
how are bony fish different than the standard fish you may see at the aquarium or market Describe some key characteristics.
Answer:
At aquarium are usualy Cartilaginous fishes.
Explanation:
Cartilaginous fish have cartilage skeletons, while bonefish have a skeleton that mainly consists of bone.
Bonefish:
Their endoskeleton is completely bone.They have the previous opening of the tipThey can be freshwater or sea fishCartilaginous fish:
They are predominantly cartilated in their endoskeletonTheir exoskeleton is placoid (very small denticles coated with lots of sharp enamel)The mouth of these fish is located in the middlewhich characteristic of life is essential for all the other characteristics of life?
Answer:
Para algunos autores la característica más importante de la vida es el metabolismo celular, ya que por medio de éste los organismos pueden mantener su estructura y función. Para los biólogos moleculares, lo más importante es el ADN y la capacidad de replicarse que tenga dicho organismo
Explanation:
Name the enzyme that breaks the hydrogen bonds holding the
two DNA strands together during DNA replication?
DNA helicase is the enzyme that breaks the hydrogen bonds which holds the two DNA strands together during DNA replication.
What is DNA helicase?During replication of DNA , the enzyme DNA helicase separates the two strands of DNA and causes the breakdown of hydrogen bonds between the two DNA strands which leads to separating of the DNA double helix into two individual strands which make easier to copy it.
In conclusion, DNA helicase is the enzyme that breaks the hydrogen bonds.
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This diagram represents the cell cycle. When cells leave the cell cycle, they exit during G1 phase and then enter G0 phase, a resting period. Most normal cells can leave G0 phase and reenter the cell cycle at G1 phase before entering S phase. Cancer cells are different because they cannot enter G0 phase and are likely to do which of the following?
A Fail to complete S phase
B Continuous unregulated cell division
C Mutate during G phase
D Die after completing mitosis
What are alleles?
the decoders of the DNA message
two forms of single genes, alternate forms of the instructions
the basic unit of inheritance
a measurable factor
Answer:
Two forms of single genes, alternate forms of the instructions
Explanation:
Answer:
Alleles are two forms of single genes, alternate forms of the instructions.
Explanation:
i hope this helps :)
Which contributes most in supporting life on the deep ocean floor?
O A. cold water temperatures
O B. extreme water pressure
O
C. hydrothermal vents
O
D. lack of predators
Based on the arrows, what does the image represent? Air masses are barely moving. Air masses are colliding with each other. Jet streams are forming in the upper atmosphere. Weather conditions are remaining steady and unchanged.
Answer:
2-Air masses are colliding with each other.
Explanation:
have a great day <3
From the image given below its clear that the warm is rising upwards and as a result of the collision from the cold winds or front from below, hence the development of clouds that make the thunderstorms appear.And a result of this turbulent the rising air is pushed and the warm front cycle takes a turn and will lead to either development of cyclone or rainfall.HELP ASAP 100 POINTS ACTUAL ANSWERS OR I WILL REPORT
1- How did economics delay scientists’ first attempts for conservation in the forest industry?
Think about MONEY involved for conservation.
2- Describe the political actions that led to successful conservation in the forest industry.
Think about ORGANIZATIONS from each article.
ANSWER FOR BOTH
Community Conservation Using Forests Wisely
Answer:
causing them to lose their shelter. also gave money
Explanation:
What stage of mitosis is this? Brainliest will be involved for the correct answer
Answer:
Metaphase
Explanation:
The answer is metaphase.
Please Answer These Questions in Complete sentences.
1. using complete sentences, explain why a dog and a wolf might be considered the same species. Then explain why they might not be considered the same species.
2. explain how behavior might make two organisms unable to be part of the same species/population
Answer:
1.dogs and wolves shares lots of alike qualities like k9 teeth good smelling and they even look similar but they can also not be considered the same because dogs have lots of different color patterns and are less hostile than wolves
Explanation:
cant help with number 2 sorry
could someone please help me with this. :’)
Answer:
cool paper
Explanation:
Revolution example real world examples of revolution in science.
Answer:
earth revolution around the sun
PLEASE HELP DUE RIGHT NOW
Answer:
Its either A or C
Explanation:
answer for brainlist
Help
I don’t know what to do here
Number 2 don’t have to answer I just need help for 1!
Answer:
dominant is the 2 capital letters heterozygous dominant is one capital and one lower case
purple
hairy knuckles normal tails
Explanation:
answer asap plz i need this for my a
Which of these factors make hydrogen fuel cells a better option than burning fossil fuels?
Hydrogen fuel cells have a higher energy efficiency.
Hydrogen fuel cells create less pollution.
Burning fossil fuels relies on outdated devices and technology.
Hydrogen is the most abundant element in the universe.
Hydrogen fuel cells are more expensive than fossil fuels.
Hydrogen fuel cells have a higher energy efficiency.
Hydrogen fuel cells create less pollution
i got it right on the assignment
The use of hydrogen fuel cells is preferable to using fossil fuels since they are more environmentally friendly and have a higher energy efficiency. So, the correct options are A and B.
What is Hydrogen fuel cell?The use of hydrogen fuel cells is preferable to using fossil fuels since they are more environmentally friendly and have a higher energy efficiency.
Because they transform the chemical energy of hydrogen and oxygen into electricity with an efficiency of about 50–60% as opposed to the 30–40% of burning fossil fuels, hydrogen fuel cells are more energy efficient than burning fossil fuels. This increases efficiency and reduces waste by converting more of the fuel's stored energy into usable work.
Burning fossil fuels produces a variety of pollutants, including carbon dioxide, nitrogen oxides, sulphur dioxide, and water, whereas using hydrogen fuel cells only produces heat and water as byproducts.
Therefore, the correct options are A and B.
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